Hey everyone. I need some help. I just picked up a Bridgestone Altair yesterday. I took out the stem and its stamped 80. So I am figuring the bike is probably a 1980 model. DOES ANYONE HAVE A 1980 Bridgestone bicycle catalog, so I can get the scoop on this ride? THANKS SO MUCH!

p.s. I know Sheldon has catalogs on his page, but, only starting from like 1985 or so.

Tange is one of the companies that produces the tubes used to build bicycles, along with Reynolds, Columbus, Ishiwata, etc. So your fork, and most likely the entire bike frame, was built with Tange tubing produced in Japan.

Thanks Folks! I will start taking it apart more and go after dating some of the components. The components appear all to be Suntour (SL), except the rear derailer, a Shimano SIS (or 515) I cannot tell. Probably not original eh? Also, if TANGE is the company that made the tubing, any ideas of what kind of tubing it is??